Home / 39,010.51-53,834.52-21,105.46

Finding the Fourth Proportional to 39,010.51, 53,834.52 and 21,105.46

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Solution

The fourth proportional to 39,010.51, 53,834.52 and 21,105.46 is: 29,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,010.51 : 53,834.52 = 21,105.46 : x
  2. Step 2: Convert to fraction form
    39,010.51/53,834.52 = 21,105.46/x
  3. Step 3: Cross multiply
    39,010.51x = 53,834.52 × 21,105.46
  4. Step 4: Simplify right side
    39,010.51x = 1,136,202,454.92
  5. Step 5: Solve for x
    x = 1,136,202,454.92/39,010.51
  6. Step 6: Final answer
    x = 29,125.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.